#name : NA missing data plot density
# key : naniar.plot.density.missing
# contributor: Shuguang Sun
# --
${1:dt} |>
  naniar::bind_shadow() |>
  ggplot2::ggplot(aes(x = ${2:x},
                  fill = ${3:y})) + 
  ggplot2::geom_density(alpha = 0.5)